查询词典 compressive stress

Using the apparatus of high stress and high hydraulic pressure developed by author, a series of tests was carried out, and the expressions of dewater consolidated settlement with hydraulic pressure and coefficient of permeability with efficient stress was obtained.

通过自行设计的高应力、高水压试验装置，进行了一系列的试验，获得了疏排水沉降量与水压变化、渗透系数与有效应力之间的关系表达式；首次对回归系数的主要影响因素从颗粒级配的特征粒径和特性参数入手，进行了系统的分析；得到了压缩模量与水压降的正相关关系式；提出了一种简便、易行的先期固结压力的确定方法，并对深土力学特性进行了初步研究；推导了各种边界条件下Terzaghi 和Biot 固结理论的水头及沉降量的解析解或半解析解；编写了隐式差分

Based on the characteristics of stress distribution in high-pressure cylinder ,the formula of calculating the maximal equivalent stress is educed according to the fourth strength theory and the quantitative relationship between cylinder's inside pressure and diametrical ratio and the fatigue limit were founded.

基于高压缸的应力分布特点，由第四强度理论推导出了高压缸最大应力的当量应力的计算公式，建立了缸筒内压与缸筒径比及持久极限的量化关系。

The indentation stress field and single-point diamond grinding stress field of ceramic materials are described with elasticity theory.

应用弹性理论建立了陶瓷材料的压痕应力场和单金刚石颗粒磨削应力场。

After 180-min stress, the diencephalon contents of 5-HT and 5-HIAA correlated positively with the plasma levels of corticostreone and 〓· These results indicate that brain 5-HT participates in the activation of hypothalamic-pituitary-adrenal and hypothalamic-pituitary-thyroid axes during stress.

甲状腺切除还可以阻断侧脑室注射5-HT引起的加重溃疡形成的作用，而地塞米松预处理则无此作用，提示侧脑室注射5-HT加重溃疡的作用主要通过兴奋HPT轴实现。

Significant negative correla- tions between the diencephalon 5-HT or 5-HIAA and gastric ulcer index were observed after 45-min peroid of stress, whereas significant positive correlations between them were observed after 180-min of stress.

侧脑室注射5-HT增加应激后下丘脑CRF含量，血浆皮质酮、〓和〓的水平，PCPA则有相反的结果；在应激180分钟时，间脑5-HT和5-HIAA水平分别与血浆皮质酮、〓呈明显的正相关关系。

The stress dependent character of oxide trap has been a problem in the study of oxide degradation. Using the Proportional Differential Operator method, we extract the trap parameters, and study their stress dependent characteristic change.

新生陷阱的应力相关特性是氧化层退化研究的基础工作，本文利用比例差分的方法提取了陷阱参数，并研究了陷阱参数的应力相关特性。

The distribution of temperature stress was calculated by finite element analysis. The results showed when the surface temperature of concrete was higher than 110℃, the temperature stress was more than 4 MPa without regard to the creep. This might be lead to the damage of the surface of concrete. At the same time, a lot of microstructure analysiss such as XRD, SEM, IR, HSA etc. were done to analysis the difference of the component and microstructre of concrete before and after corrosion. The results indicated that the decomposion of CSH gel and calcium hydroxide and the creation of dilatability calcium oxide were the internal reason of the deterioration of concrete in the corrosion form of high heat.

该文通过有限元方法计算了由于温度而产生的结构应力分布，计算结果表明当混凝土表面温度超过110℃时，如不考虑徐变时表层混凝土受到的温度应力将超过4MPa，这使得表层混凝土很容易因温度应力而破坏；同时通过X射线衍射分析、扫描电子显微分析和混凝土孔结构分析等多种微观结构测试手段，分析了混凝土受热前后的宏观性能以及微观组成和结构的变化，指出混凝土原水化产物如水化硅酸钙凝胶和氢氧化钙的分解以及膨胀性产物氧化钙的产生是高热腐蚀形式下混凝土破坏的内在原因。

It is concluded that disablement of die is mainly by temperature stress and disablement form is mainly plastic and thermal fatigue disablement from data of stress.

根据应力场的数据，得出结论：锻模的失效主要是温度应力引起的，其失效形式主要是塑变失效和热疲劳失效。

The use of ANSYS finite element software to establish a large-scale Decanters double cone angle of the two-dimensional finite element model of the drum to its normal working condition in the overall structure of static analysis, has been the drum of the radial, axial deformation and stress distribution and maximum stress points, results show that the double cone angle drum strength and stiffness to meet the requirements to verify the safety of the structure of double cone angle.

利用ANSYS有限元软件建立了大型卧螺离心机双锥角转鼓的二维有限元模型，对其在正常工作状态下的整体结构进行了静力分析，得到了转鼓的径向、轴向变形和应力分布及最大应力点，结果表明双锥角转鼓的强度和刚度均满足要求，验证了双锥角结构的安全性。

The first batch cracks of concrete bodies in South China had been caused by temperature stresses of cement hydration heat.While the double-action of (1) expansion stress of concrete and (2) temperature stress of day and night's difference of temeperature had been mainly the cause of cracks.

在南方地区，混凝土墙体拆模后的第一批裂缝是由于水泥水化热引起的温度应力造成的，而混凝土收缩引起的收缩应力与昼夜温差引起的温度应力的双重作用，则是导致后续裂缝的主要原因。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。